2025 GMC Sierra 2500 HD Crew Cab

Recent

37 photos

Price Drop

2025 GMC Sierra 2500 HD Crew Cab

AT4X Pickup 4D 6 1/2 ft

27,686 miles

Includes:$10,485 in factory upgrades

Why You’ll Love This Sierra 2500

Slotted between the AT4 and the Denali and Denali Ultimate trims in the Sierra HD lineup, the AT4X blends serious trail hardware and premium comfort with a factory‑installed 1.5‑inch suspension lift and Multimatic DSSV dampers, 16‑way power front seats with heating, ventilation and massage, and a crisp 13.4‑inch diagonal center touchscreen for effortless control.

Duramax 6.6L Turbo-Diesel V8 engine

Originally valued at $9,990, this powerful 6.6L Turbo-Diesel V8 engine delivers substantial power and torque for heavy-duty towing and hauling.

Gooseneck/5th Wheel Prep Package

Originally valued at $545, this package equips the truck for heavy-duty gooseneck and 5th wheel towing, providing necessary mounting points and wiring provisions.

Onyx Black

Originally valued at $495, a deep, rich Onyx Black finish coats the exterior, providing a distinctive and commanding presence.

Obsidian Rush interior

Creates a premium cabin environment with an exclusive Obsidian Rush interior, full-grain leather seating and Vanta ash wood accents.

Serious diesel power

Unleashes 470 HP and 975 lb-ft through the Duramax 6.6L Turbo-Diesel V8 engine, Allison 10-speed automatic transmission and 4WD, enhanced by an exhaust brake and improved low-end torque.

Adventure-ready engineering

The AT4X trim prioritizes extreme off-road capability with specialized hardware for challenging terrain.

Factory suspension lift

Provides a factory-installed 1.5-inch suspension lift, enhancing ground clearance and off-road capability.

Multimatic DSSV dampers

Delivers superior ride control and off-road performance through advanced Multimatic DSSV dampers.

Luxury front seats

Offers exceptional comfort and support with 16-way power front seats featuring heating, ventilation and massage functions.

Rear electronic-locking differential

Enhances traction and control in challenging off-road conditions with a rear electronic-locking differential.

Large center touchscreen

Provides intuitive access to infotainment and vehicle settings through a prominent 13.4-inch diagonal center touchscreen.

Steel transfer case skid plate

Protects critical underbody components with a larger steel transfer case skid plate.

Front aluminum skid plate

Shields the front undercarriage from impacts with a durable front aluminum skid plate.

Sierra HD Pro Safety

Enhances driving confidence with the Sierra HD Pro Safety suite, including Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking and Lane Departure Warning.

18-inch machined aluminum wheels with black accents

Machined aluminum construction provides a refined appearance, complemented by high gloss black accents that add a modern, contrasting visual element to the vehicle's profile.

This content is AI-generated and some details may not be 100% accurate. Refer to the details throughout this page for specific vehicle info.